Psion Handhelds

Hello! I am a proud owner of a Psion Handheld (series 5mx pro). Unfortunately, they are not sold anymore and nor software updates are made anymore. Short question: How do I transfer the data on the Psion (the language of the Psion is EPOC) to Linux? It is mostly adresses and schedule date, I have found no software or tools. I do also appreciate indirect help (where to look, who to ask) a lot. Thank you! Tobias